18737818

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{7039}}^1$

素因数の和:7074

約数の個数: 16

約数和(自身を含む): 30919680

約数和(自身を除く): 12181862

約数列:

[1, 2, 11, 22, 121, 242, 1331, 2662, 7039, 14078, 77429, 154858, 851719, 1703438, 9368909, 18737818]

約数ペア:

[(1, 18737818), (2, 9368909), (11, 1703438), (22, 851719), (121, 154858), (242, 77429), (1331, 14078), (2662, 7039)]